luboslenco
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
#pragma once
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#include "engine.h"
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#include "iron_math.h"
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extern mat4_t _raycast_vp_inv;
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extern mat4_t _raycast_p_inv;
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extern mat4_t _raycast_v_inv;
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typedef struct ray {
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vec4_t origin;
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vec4_t dir;
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} ray_t;
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typedef struct plane {
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vec4_t normal;
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f32 constant;
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} plane_t;
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ray_t *ray_create(vec4_t origin, vec4_t dir);
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vec4_t ray_at(ray_t *raw, f32 t);
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f32 ray_dist_to_point(ray_t *raw, vec4_t point);
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bool ray_intersects_sphere(ray_t *raw, vec4_t sphere_center, f32 sphere_radius);
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bool ray_intersects_plane(ray_t *raw, plane_t *plane);
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f32 ray_dist_to_plane(ray_t *raw, plane_t *plane);
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vec4_t ray_intersect_plane(ray_t *raw, plane_t *plane);
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vec4_t ray_intersect_box(ray_t *raw, vec4_t center, vec4_t dim);
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vec4_t ray_intersect_triangle(ray_t *raw, vec4_t a, vec4_t b, vec4_t c, bool cull_backface);
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plane_t plane_create(void);
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f32 plane_dist_to_point(plane_t *raw, vec4_t point);
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plane_t plane_set(plane_t *raw, vec4_t normal, vec4_t point);
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ray_t *raycast_get_ray(f32 input_x, f32 input_y, camera_object_t *camera);
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vec4_t raycast_box_intersect(transform_t *transform, f32 input_x, f32 input_y, camera_object_t *camera);
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transform_t *raycast_closest_box_intersect(any_array_t *transforms, f32 input_x, f32 input_y, camera_object_t *camera);
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vec4_t raycast_plane_intersect(vec4_t normal, vec4_t a, f32 input_x, f32 input_y, camera_object_t *camera);
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